Marcello Mastroianni as Antonio Jasiello

Jack Lemmon as Robert Traven

Daria Nicolodi as Laura Di Falco

Bruno Esposito as Giulio Jasiello

Maria Luisa Santella as la portiera

Orsetta Gregoretti as l’attrice

Isa Danieli as Carmelina Jasiello

Patrizia Sacchi as Virginia

Marc Berman as 1° produttore discografico

Jean-François Perrier as 2° produttore discografico

Fabio Tenore as Pasqualino

Giovanna Sanfilippo as Maria

Marta Bifano as Luisella

Aldo De Martino as Cottone

Clotilde De Spirito as l'amante del cattivo

Carlotta Ercolino as giornalista TV

Vincenza Gioioso as Donna Amalia

Ernesto Mahieux as il giovane attore a Teatro

Giovanni Mauriello as Autista

Daniela Novak as fidanzata di Giulio

Umberto Principe as Michele Vitale

Giovanni Riccardi as Eugenio

Corrado Taranto as Alberto